1. Department of Earth Resources Engineering, Faculty of Engineering Kyushu University Fukuoka Japan
2. Geology Department, Faculty of Science Suez Canal University Ismailia Egypt
3. International Institute for Carbon‐Neutral Energy Research (I2CNER) Kyushu University Fukuoka Japan
4. School of Engineering The University of Tokyo Tokyo Japan
5. Sumitomo Metal Mining Co., Ltd Tokyo Japan
6. Hishikari mine Sumitomo Metal Mining Co., Ltd Kagoshima Japan